Loans - Risk Categories of Loans by Class of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 1,563,032	$ 1,309,434
One year prior to current fiscal year	745,584	912,701
Two years prior to current fiscal year	751,942	779,840
Three years prior to current fiscal year	581,648	589,022
Four years prior to current fiscal year	423,022	582,417
Prior	1,181,217	928,105
Revolving	678,584	633,830
Total	5,925,029	5,735,349
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,562,502	1,302,389
One year prior to current fiscal year	716,570	898,213
Two years prior to current fiscal year	729,697	741,734
Three years prior to current fiscal year	549,567	562,336
Four years prior to current fiscal year	408,614	553,531
Prior	1,125,909	885,576
Revolving	672,256	628,070
Total	5,765,115	5,571,849
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	530	6,108
One year prior to current fiscal year	22,138	3,507
Two years prior to current fiscal year	6,645	19,722
Three years prior to current fiscal year	993	13,953
Four years prior to current fiscal year	925	14,820
Prior	18,430	7,235
Revolving	2,607	2,544
Total	52,268	67,889
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	504
One year prior to current fiscal year	5,487	41
Two years prior to current fiscal year	5,632	12,725
Three years prior to current fiscal year	26,800	7,256
Four years prior to current fiscal year	6,701	10,823
Prior	22,515	14,083
Revolving	648	1,092
Total	67,783	46,524
Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	433
One year prior to current fiscal year	1,389	10,940
Two years prior to current fiscal year	9,968	5,659
Three years prior to current fiscal year	4,288	5,477
Four years prior to current fiscal year	6,782	3,243
Prior	14,363	21,211
Revolving	3,073	2,104
Total	39,863	49,067
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	20
Total	0	20
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	94,318	62,313
One year prior to current fiscal year	23,860	52,629
Two years prior to current fiscal year	38,058	51,985
Three years prior to current fiscal year	25,729	15,910
Four years prior to current fiscal year	3,995	7,335
Prior	15,515	19,612
Revolving	29,349	35,324
Total	230,824	245,108
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	94,318	62,107
One year prior to current fiscal year	23,860	52,384
Two years prior to current fiscal year	38,058	46,067
Three years prior to current fiscal year	25,507	15,873
Four years prior to current fiscal year	3,995	7,335
Prior	15,466	17,873
Revolving	29,349	35,324
Total	230,553	236,963
Construction and land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	206
One year prior to current fiscal year	0	245
Two years prior to current fiscal year	0	5,918
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	1,449
Revolving	0	0
Total	0	7,818
Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	51
Revolving	0	0
Total	0	51
Construction and land development | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	222	37
Four years prior to current fiscal year	0	0
Prior	49	239
Revolving	0	0
Total	271	276
Construction and land development | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial real estate - owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	205,404	161,726
One year prior to current fiscal year	160,959	203,568
Two years prior to current fiscal year	187,898	160,328
Three years prior to current fiscal year	133,312	144,412
Four years prior to current fiscal year	129,867	154,815
Prior	370,329	302,204
Revolving	10,005	14,257
Total	1,197,774	1,141,310
Commercial real estate - owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	205,404	155,953
One year prior to current fiscal year	154,432	198,559
Two years prior to current fiscal year	179,786	156,276
Three years prior to current fiscal year	132,353	138,341
Four years prior to current fiscal year	125,763	148,389
Prior	363,986	287,772
Revolving	10,005	14,255
Total	1,171,729	1,099,545
Commercial real estate - owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	5,773
One year prior to current fiscal year	6,527	1,858
Two years prior to current fiscal year	5,370	3,305
Three years prior to current fiscal year	649	0
Four years prior to current fiscal year	218	4,471
Prior	3,250	4,050
Revolving	0	2
Total	16,014	19,459
Commercial real estate - owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	4,709
Four years prior to current fiscal year	3,290	1,955
Prior	1,610	5,508
Revolving	0	0
Total	4,900	12,172
Commercial real estate - owner occupied | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	3,151
Two years prior to current fiscal year	2,742	747
Three years prior to current fiscal year	310	1,362
Four years prior to current fiscal year	596	0
Prior	1,483	4,874
Revolving	0	0
Total	5,131	10,134
Commercial real estate - owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial real estate - non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	395,308	159,299
One year prior to current fiscal year	213,644	316,136
Two years prior to current fiscal year	303,723	220,308
Three years prior to current fiscal year	209,545	130,937
Four years prior to current fiscal year	113,505	194,299
Prior	494,237	366,279
Revolving	6,477	8,596
Total	1,736,439	1,395,854
Commercial real estate - non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	395,308	159,299
One year prior to current fiscal year	207,824	313,287
Two years prior to current fiscal year	298,021	201,112
Three years prior to current fiscal year	186,339	123,357
Four years prior to current fiscal year	110,990	175,623
Prior	460,435	356,943
Revolving	6,477	8,596
Total	1,665,394	1,338,217
Commercial real estate - non-owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	431
Two years prior to current fiscal year	844	9,487
Three years prior to current fiscal year	0	7,580
Four years prior to current fiscal year	289	10,240
Prior	13,850	114
Revolving	0	0
Total	14,983	27,852
Commercial real estate - non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	4,776	0
Two years prior to current fiscal year	3,009	9,709
Three years prior to current fiscal year	23,206	0
Four years prior to current fiscal year	1,900	8,311
Prior	17,266	3,682
Revolving	0	0
Total	50,157	21,702
Commercial real estate - non-owner occupied | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	1,044	2,418
Two years prior to current fiscal year	1,849	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	326	125
Prior	2,686	5,540
Revolving	0	0
Total	5,905	8,083
Commercial real estate - non-owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	394,547	97,278
One year prior to current fiscal year	114,853	145,055
Two years prior to current fiscal year	91,290	205,630
Three years prior to current fiscal year	119,945	208,424
Four years prior to current fiscal year	123,029	161,327
Prior	224,122	171,831
Revolving	357,568	353,083
Total	1,425,354	1,342,628
Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	394,547	96,819
One year prior to current fiscal year	114,364	144,329
Two years prior to current fiscal year	90,566	204,077
Three years prior to current fiscal year	119,836	205,046
Four years prior to current fiscal year	118,556	160,612
Prior	213,950	159,742
Revolving	354,439	350,502
Total	1,406,258	1,321,127
Residential real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	33
Three years prior to current fiscal year	70	720
Four years prior to current fiscal year	0	0
Prior	1,243	966
Revolving	532	479
Total	1,845	2,198
Residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	350
One year prior to current fiscal year	340	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	896
Four years prior to current fiscal year	58	0
Prior	422	1,452
Revolving	86	100
Total	906	2,798
Residential real estate | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	109
One year prior to current fiscal year	149	726
Two years prior to current fiscal year	724	1,520
Three years prior to current fiscal year	39	1,762
Four years prior to current fiscal year	4,415	715
Prior	8,507	9,671
Revolving	2,511	2,002
Total	16,345	16,505
Residential real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial and financial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	341,356	215,316
One year prior to current fiscal year	196,831	152,093
Two years prior to current fiscal year	104,238	110,949
Three years prior to current fiscal year	75,757	70,295
Four years prior to current fiscal year	42,389	42,386
Prior	60,874	58,336
Revolving	247,911	205,378
Total	1,069,356	854,753
Commercial and financial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	340,826	214,774
One year prior to current fiscal year	180,677	146,511
Two years prior to current fiscal year	97,072	103,769
Three years prior to current fiscal year	68,232	60,782
Four years prior to current fiscal year	39,331	39,692
Prior	56,053	53,758
Revolving	246,568	204,304
Total	1,028,759	823,590
Commercial and financial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	530	71
One year prior to current fiscal year	15,587	946
Two years prior to current fiscal year	0	965
Three years prior to current fiscal year	237	5,612
Four years prior to current fiscal year	251	67
Prior	84	635
Revolving	876	209
Total	17,565	8,505
Commercial and financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	154
One year prior to current fiscal year	371	41
Two years prior to current fiscal year	2,605	3,016
Three years prior to current fiscal year	3,594	1,609
Four years prior to current fiscal year	1,436	553
Prior	3,217	3,239
Revolving	339	764
Total	11,562	9,376
Commercial and financial | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	317
One year prior to current fiscal year	196	4,595
Two years prior to current fiscal year	4,561	3,199
Three years prior to current fiscal year	3,694	2,292
Four years prior to current fiscal year	1,371	2,074
Prior	1,520	704
Revolving	128	81
Total	11,470	13,262
Commercial and financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	20
Total	0	20
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	45,063	46,541
One year prior to current fiscal year	31,366	43,220
Two years prior to current fiscal year	26,735	30,640
Three years prior to current fiscal year	17,360	19,044
Four years prior to current fiscal year	10,237	22,255
Prior	16,140	9,843
Revolving	27,274	17,192
Total	174,175	188,735
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	45,063	46,476
One year prior to current fiscal year	31,342	43,143
Two years prior to current fiscal year	26,194	30,433
Three years prior to current fiscal year	17,300	18,937
Four years prior to current fiscal year	9,979	21,880
Prior	16,019	9,488
Revolving	25,418	15,089
Total	171,315	185,446
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	58
One year prior to current fiscal year	24	27
Two years prior to current fiscal year	431	14
Three years prior to current fiscal year	37	41
Four years prior to current fiscal year	167	42
Prior	3	21
Revolving	1,199	1,854
Total	1,861	2,057
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	18	0
Three years prior to current fiscal year	0	42
Four years prior to current fiscal year	17	4
Prior	0	151
Revolving	223	228
Total	258	425
Consumer | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	7
One year prior to current fiscal year	0	50
Two years prior to current fiscal year	92	193
Three years prior to current fiscal year	23	24
Four years prior to current fiscal year	74	329
Prior	118	183
Revolving	434	21
Total	741	807
Consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Paycheck Protection Program
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	87,036	566,961
One year prior to current fiscal year	4,071	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	91,107	566,961
Paycheck Protection Program | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	87,036	566,961
One year prior to current fiscal year	4,071	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	$ 91,107	$ 566,961